Moon and another attributes of the real Earth. Why?

[Xyno]

Good day

I wonder why the SE created the world of the game so looking like the Earth. Moon, Sun and so on. Of course it is not the Sun, but another star by the worm of which the life can exists, but still. Was it really hard to create the really unusual world, but not the COPY OF THE EARTH?

We need a "moon"? Ok, but create 2 or 3 moons. We need a "sun"? Make it different. Make really a different world. Why the copy of the Earth? Does the SE have the lack of imagination?

Do you remember the "Star gate"? Was it hard to create something like this?